Messages in this thread | | | Date | Tue, 20 Feb 2018 12:54:42 -0800 | From | Matthew Wilcox <> | Subject | Re: [PATCH 3/6] struct page: add field for vm_struct |
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On Tue, Feb 20, 2018 at 09:53:30PM +0200, Igor Stoppa wrote: > The patch relies on the function vmalloc_to_page ... which will return > NULL when applied to huge mappings, while the original implementation > will still work.
Huh? vmalloc_to_page() should work for huge mappings...
> It was found while testing on a configuration with framebuffer.
... ah. You tried to use vmalloc_to_page() on something which wasn't backed by a struct page. That's *supposed* to return NULL, but my guess is that after this patch it returned garbage.
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